Section 3740. Quantities of radioactive materials requiring consideration of the need for an emergency plan for responding to a release  


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  • Radioactive material1

    Release fraction

    Quantity (curies)

    Actinium-228

    0.001

    4,000

    Americium-241

    .001

    2

    Americium-242

    .001

    2

    Americium-243

    .001

    2

    Antimony-124

    .01

    4,000

    Antimony-126

    .01

    6,000

    Barium-133

    .01

    10,000

    Barium-140

    .01

    30,000

    Bismuth-207

    .01

    5,000

    Bismuth-210

    .01

    600

    Cadmium-109

    .01

    1,000

    Cadmium-113

    .01

    80

    Calcium-45

    .01

    20,000

    Californium-252

    .001

    g (20 mg)

    Carbon-14 (non-carbon dioxide)

    .01

    50,000

    Cerium-141

    .01

    10,000

    Cerium-144

    .01

    300

    Cesium-134

    .01

    2,000

    Cesium-137

    .01

    3,000

    Chlorine-36

    .5

    100

    Chromium-51

    .01

    300,000

    Cobalt-60

    .001

    5,000

    Copper-64

    .01

    200,000

    Curium-242

    .001

    60

    Curium-243

    .001

    3

    Curium-244

    .001

    4

    Curium-245

    .001

    2

    Europium-152

    .01

    500

    Europium-154

    .01

    400

    Europium-155

    .01

    3,000

    Germanium-68

    .01

    2,000

    Gadolinium-153

    .01

    5,000

    Gold-198

    .01

    30,000

    Hafnium-172

    .01

    400

    Hafnium-181

    .01

    7,000

    Holmium-166m

    .01

    100

    Hydrogen-3

    .5

    20,000

    Iodine-125

    .5

    10

    Iodine-131

    .5

    10

    Indium-114m

    .01

    1,000

    Iridium-192

    .001

    40,000

    Iron-55

    .01

    40,000

    Iron-59

    .01

    7,000

    Krypton-85

    1.0

    6,000,000

    Lead-210

    .01

    8

    Manganese-56

    .01

    60,000

    Mercury-203

    .01

    10,000

    Molybdenum-99

    .01

    30,000

    Neptunium-237

    .001

    2

    Nickel-63

    .01

    20,000

    Niobium-94

    .01

    300

    Phosphorus-32

    .5

    100

    Phosphorus-33

    .5

    1,000

    Polonium-210

    .01

    10

    Potassium-42

    .01

    9,000

    Promethium-145

    .01

    4,000

    Promethium-147

    .01

    4,000

    Radium-226

    .001

    100

    Ruthenium-106

    .01

    200

    Samarium-151

    .01

    4,000

    Scandium-46

    .01

    3,000

    Selenium-75

    .01

    10,000

    Silver-110m

    .01

    1,000

    Sodium-22

    .01

    9,000

    Sodium-24

    .01

    10,000

    Strontium-89

    .01

    3,000

    Strontium-90

    .01

    90

    Sulfur-35

    .5

    900

    Technitium-99

    .01

    10,000

    Technitium-99m

    .01

    400,000

    Tellurium-127m

    .01

    5,000

    Tellurium-129m

    .01

    5,000

    Terbium-160

    .01

    4,000

    Thulium-170

    .01

    4,000

    Tin-113

    .01

    10,000

    Tin-123

    .01

    3,000

    Tin-126

    .01

    1,000

    Titanium-44

    .01

    100

    Vanadium-48

    .01

    7,000

    Xenon-133

    1.0

    900,000

    Yttrium-91

    .01

    2,000

    Zinc-65

    .01

    5,000

    Zirconium-93

    .01

    400

    Zirconium-95

    .01

    5,000

    Any other beta-gamma emitter

    .01

    10,000

    Mixed fission products

    .01

    1,000

    Mixed corrosion products

    .01

    10,000

    Contaminated equipment beta-gamma

    .001

    10,000

    Irradiated material, any form other than
    solid noncombustible

    .01

    1,000

    Irradiated material, solid noncombustible

    .001

    10,000

    Mixed radioactive waste, beta-gamma

    .01

    1,000

    Packaged mixed waste, beta-gamma2

    .001

    10,000

    Any other alpha emitter

    .001

    2

    Contaminated equipment, alpha

    .0001

    20

    Packaged waste, alpha2

    .0001

    20

    Combinations of radioactive materials
    listed above1

    1For combinations of radioactive materials, consideration of the need for an emergency plan is required if the sum of the ratios of the quantity of each radioactive material authorized to the quantity listed for that material in this section exceeds one.

    2Waste packaged in Type B containers does not require an emergency plan.

Historical Notes

Derived from Volume 24, Issue 18, eff. June 12, 2008.

Statutory Authority

§ 32.1-229 of the Code of Virginia.